I've struggled with this myself. It makes absolutely no sense to me when explained by the WTS. I look at my parents and their relationship. Both are dubs. They ADORE each other. My dad has so many plans for the "New System" and they all involve mom. He wants more children with her. He wants to be with her forever. Yet, what if mom dies? What if dad dies? According to JW beliefs, neither will be able to be with the other in any other way but as brother and sister...as friends. And even then, because they are male and female, it would be frowned upon for them to be close friends. because we all know that friendships with the opposite sex can NEVER be platonic! The resurrection theory was my reason for ignoring the advice to "wait until the New System" to have children. What if I die? Then I would have no mate, and thus be unable to have children at all! And I wanted to be a mother, so their advice went in one ear and out the other. Same with their prohibition on remarriage after divorce (if it was not a divorce due to infidelity). Okay, so I can't stand being with my husband, I'm miserable, and I want out. I can separate, I can eventually divorce (but not without the elders trying to coerce me to choose otherwise), but I cannot remarry. If I do, I will be disfellowshipped for adultery. Okay...but that also means if I make it through "Armageddon", I'll be married to this bastard for-fucking-EVER!! Oh but we'll be PERFECT! So he'll be a perfect asshole!
So in other words, in JW-land, those who die beforehand will be resurrected, but SORRY! You're gonna be lonely, unfulfilled, and childless. What an existance! But, what a GIFT from Jehovah! *eye roll*